Steering device for bicycles.



No. 677,428. Y Patented July 2, |901. G. G. SPENCER. y

STEERING DEVICE FUR BICYCLES.

(Application led Apr. 28, 1900.;

(No Model.)

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GEORGE G. SPENCER, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE CHICAGO HANDLEBAR CO., OF ILLINOIS.

STEERING DEVICE FOR BIGYCLES.

siens-reichsten forming per-t of Lettere Patent No. 677,428, aerea July2, 1901.

Application filed April 28, 1900.

To @ZZ whom, it may concern,.-

Be it known that 1, GEORGE G. SPENCER, a citizen of the United States,and a resident of Chicago, county of Cook, and State of Illinois, haveinvented certain new and useful Improvements in Steering Devices forBicycles, of which the following is a specification, and which areillustrated in the accompanying drawings, forming a part thereof.

rlhe invention relates to the combination of a divided handle-bar havingits members vertically adjustable with an extension head or support; andits object is to provide a construction in which the members of adivided handle-bar may be so mounted at the forward end of an armprojecting from the steeringhead that they may be raised and lowered inunison and may be rigidly locked in the position to which they may beadjusted.

The invention consists in the parts and arrangement of parts, ashereinafter fully described and as illustrated in the accompanyingdrawings, in which- Figure 1 is a detail plan of the steering device.Fig. 2 is a detail side elevation of the stem and its projecting arm.Fig. 3 is a detail front elevation of the same. Fig. 4 includes a planand rear elevation'of a bindingplate used in the device. Fig. 5 is adetail longitudinal section on the extension-arm, showing a slightmodification of construction. Fig. 6 is a rear view of the plate forminga part of the extension-arm as shown in Eig. 5, and Fig. 7 is a detailside elevation of the two members of the handle-bar.

rEhe stemk 10 is adapted to telescopically enter the steering-head of abicycle and is provided with the expander-rod 11, commonly used insecuring the stein within the head. An 4o arm 12 projects forwardly fromthe upper end of the stem 10 and is provided at its front end with anoblong plate 13, which may be formed as an integral part of the arm ormay be a separate member, as shown at 13, provided with a stem 23,adapted to enter a suitable aperture entering the end of the arm. XVhenthe latter construction is followed, the parts Serial No. 14,701. (Nomodel.)

are secured together by a screw 23a, entering through the plate 13a andits stem into the stem 12, and one of the parts is provided with 5o alug or with lugs, as 23, adapted to enter corresponding recesses, as12a, in the other member. As shown, Figs. 5 and 6, the lugs are formedon the stem 23 and the recesses in the stem 12.

The plate 13 is provided with two bolt-holes 14e 14, one near each ofits ends, and the two members 15 and 16 of the divided handle-bar arepivotally secured against the plate 13 by means of the bolts 13 and 19,threaded to en- 6c gage the apertures/,14. The bolt-holes are preferablycountersunk in concave form, as shown, and the cooperating disk faces ofthe hubs of the handle-bar members 15 and 16 are given a correspondingconvex form, as shown in Eig. 1.

The inner or adjacent ends or hubs of the handle-bar sections 15 16 areprovided with intermeshing gear-teeth, as shown at 17, so that the twohandle-bar sections will always 7o movein unison. A binding-plate 2O ofsubstantially the same form as the plate 13 is applied to the outer diskfaces of the hubs of the handle-bar sections and is held in place by thebolts 18 19, which pass through it. 75 The inner surface of this plateis provided with two sets of annularlyarranged serrations 21 2l,radiating from the bolt-holes, and these serrations cooperate withsimilar ser-v rations 25, formed upon'the outer faces of the 8o hubs ofthe handle-bar sections. The plate 20 may be provided with a iange 22,projecting inwardly from its upper edge, so as to in part cover thegear-teeth 17.

The handle-bars are adjusted to any desired position by first turningback the bolts 18 19, andas they are geared together the adjustment ofthe two m'embers is always uniform, and when these members are in thedesired position they are locked in place by turning 9o up the bolts 1Sand 19.

I claim as my invention- In a steering device for bicycles, incombination, a stem having a forwardly-projecting arm, an elongatedplate at the end of such the pivots of the handle-bar sections passingarm, the plane of the plate being transverse through the binding-plateand being threaded to the axis of the arm, a handle-bar of two into therst-mentioned plate.

sections separately pivoted to the plate, the GEORGE G. SPENCER. 5 hubsof the handle-bar sections havinginter- Witnesses: p

meshing gear-teeth, a single binding-plate PAUL CARPENTER,

lying against the outer faces of such hubs, LOUIS K. GILLSON.

